Answer:
Option D, [tex]2x^2 + x[/tex]
Step-by-step explanation:
Step 1: Subtract
[tex](3x^2+3x+3)-(x^2+2x+3)[/tex]
[tex]3x^2+3x+3-x^2-2x-3[/tex]
[tex](3x^2 - x^2) + (3x - 2x) + (3 - 3)[/tex]
[tex]2x^2 + x[/tex]
Answer: Option D, [tex]2x^2 + x[/tex]
